# More ROIs in one mask

**URL:** <https://discourse.slicer.org/t/more-rois-in-one-mask/17225>\
**Category:** Radiomics\
**Created:** [April 21, 2021, 3:25pm UTC](https://discourse.slicer.org/t/more-rois-in-one-mask/17225 "2021-04-21T15:25:18Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Giada\_Fiore](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/giada_fiore/32/10670_2.png) [@Giada\_Fiore](https://discourse.slicer.org/u/Giada_Fiore)\
**Post date:** [April 21, 2021, 3:25pm UTC](https://discourse.slicer.org/t/more-rois-in-one-mask/17225/1 "2021-04-21T15:25:18Z")

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Operating system: Windows 10  
Slicer version: 4.10.2

Hi, I would like to extract the features from more ROIs, but I have only one mask that I have not created myself, so I load the image and its mask in .gz format. How do I split the ROIs? Many thanks in advance.